Scattering Characteristics of 2-D Imperfect Cloaks With Layered Isotropic Materials

Author

Song, Wei ; Yang, Xin-Hua ; Sheng, Xin-Qing

Author_Institution

Center for Electromagn. Simulation (CEMS), Beijing Inst. of Technol., Beijing, China

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

53

Lastpage

56

Abstract

Transformation-based cloaks prescribing infinitesimal and infinite material parameters are difficult to be realized in practical applications. However, the underlying theory of electromagnetic transformation can be used in various applications, such as radar cross section (RCS) reduction. In this letter, we examine scattering characteristics of a metallic object coated with layered isotropic materials derived from transformation electromagnetics. The proposed structure can be viewed as an imperfect cloak, which, however, maintains the feature of reduced electromagnetic scattering while it can be easily realized in practice. Numerical experiments are performed to validate the idea.

Keywords

electromagnetic wave scattering; invisibility cloaks; 2D imperfect cloak scattering characteristics; RCS reduction; electromagnetic transformation; infinite material parameters; layered isotropic materials; metallic object scattering characteristics; radar cross section reduction; reduced electromagnetic scattering; transformation electromagnetics; transformation-based cloaks; Bandwidth; Copper; Dispersion; Electromagnetic scattering; Metamaterials; Electromagnetic (EM) scattering; layered isotropic materials; radar cross section (RCS);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2182590

Filename

6125215